Home / 77,816.40-107,386.83-45,545.16

Finding the Fourth Proportional to 77,816.40, 107,386.83 and 45,545.16

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Solution

The fourth proportional to 77,816.40, 107,386.83 and 45,545.16 is: 62,852.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,816.40 : 107,386.83 = 45,545.16 : x
  2. Step 2: Convert to fraction form
    77,816.40/107,386.83 = 45,545.16/x
  3. Step 3: Cross multiply
    77,816.40x = 107,386.83 × 45,545.16
  4. Step 4: Simplify right side
    77,816.40x = 4,890,950,756.94
  5. Step 5: Solve for x
    x = 4,890,950,756.94/77,816.40
  6. Step 6: Final answer
    x = 62,852.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.